Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
W. R. GRACE
17434 MOJAVE ST, HESPERIA, CA, 92345
Parent company: W R GRACE & CO
PBT
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | Methanol | Toluene | Mercury | Total (lbs) | ||
| 2024 | 830 | 428 | — | 1,258 | ||
| 2023 | 1,548 | 630 | — | 2,178 | ||
| 2022 | 892 | 418 | — | 1,310 | ||
| 2021 | 2,544 | 1,335 | — | 3,879 | ||
| 2020 | 2,529 | 1,681 | — | 4,210 | ||
| 2019 | 3,710 | 2,083 | — | 5,793 | ||
| 2018 | 2,392 | 1,592 | — | 3,984 | ||
| 2017 | 2,432 | 1,216 | — | 3,648 | ||
| 2016 | 2,528 | 1,419 | — | 3,947 | ||
| 2015 | 2,674 | 1,436 | — | 4,110 | ||
| 2014 | 2,009 | 1,174 | — | 3,183 | ||
| 2013 | 2,418 | 1,187 | — | 3,605 | ||
| 2012 | 2,552 | 1,252 | — | 3,804 | ||
| 2011 | 2,234 | 890 | — | 3,124 | ||
| 2010 | 2,145 | 965 | — | 3,110 | ||
| 2009 | 2,175 | 799 | — | 2,974 | ||
| 2008 | 4,057 | 994 | 0 | 5,052 | ||
| 2007 | 6,723 | 637 | 0 | 7,360 | ||
| 2006 | 13,043 | 1,407 | 0 | 14,450 | ||
| 2005 | 8,878 | 721 | — | 9,599 | ||
| 2004 | 7,754 | 2,890 | — | 10,644 | ||
| 2003 | 6,888 | 1,738 | — | 8,626 | ||
| 2002 | 5,962 | 880 | — | 6,842 | ||
| 2001 | 3,597 | 3,528 | — | 7,125 | ||
| 2000 | 9,207 | 250 | — | 9,457 | ||
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.